Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model

Abstract

Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.

Original language	English
Pages (from-to)	182-190
Number of pages	9
Journal	Computers and Fluids
Volume	118
DOIs	https://doi.org/10.1016/j.compfluid.2015.06.022
Publication status	Published - 2 Sep 2015

Keywords

Buongiorno model
Free convection
Horizontal annulus
Nanofluids
Numerical method
Porous medium

ASJC Scopus subject areas

Computer Science(all)
Engineering(all)

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10.1016/j.compfluid.2015.06.022

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title = "Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model",

abstract = "Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.",

keywords = "Buongiorno model, Free convection, Horizontal annulus, Nanofluids, Numerical method, Porous medium",

author = "Sheremet, {Mikhail A.} and Ioan Pop",

year = "2015",

month = sep,

day = "2",

doi = "10.1016/j.compfluid.2015.06.022",

language = "English",

volume = "118",

pages = "182--190",

journal = "Computers and Fluids",

issn = "0045-7930",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Free convection in a porous horizontal cylindrical annulus with a nanofluid using Buongiorno's model

AU - Sheremet, Mikhail A.

AU - Pop, Ioan

PY - 2015/9/2

Y1 - 2015/9/2

N2 - Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.

AB - Natural convection flow in a porous concentric horizontal annulus saturated with a water based nanofluid is numerically investigated. The mathematical model used is of single-phase and is formulated in dimensionless stream function and temperature taking into account the Darcy-Boussinesq approximation and the nanofluid model proposed by Buongiorno. The transformed dimensionless partial differential equations have been solved using a second-order accurate finite-difference technique. The results indicate that inclusion of nanoparticles into pure water changes the flow structure at low values of the Rayleigh number.

KW - Buongiorno model

KW - Free convection

KW - Horizontal annulus

KW - Nanofluids

KW - Numerical method

KW - Porous medium

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DO - 10.1016/j.compfluid.2015.06.022

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